Buttonhole-sewing machine.



Patented Nov. 25, I902.

5 Sheets-sham l.

No. 7|4,2a4.

C A DAHL &. G S HILL BUTTONHOLE SEWING MACHINE.

(Application filed Feb. 5, 1902.; (No Model.)

N0. 7|4,284 Patented Nov. 25, I902.

c. A DAHL & a. s. HILL. BUTTONHOLE SEWING MACHINE.

(Applic ajzion filed e 5, 1902.; (No Model.)

no.7|4,2s4. Patented Nov. 25, I902. c. A. DAHL & a. s. HILL.

BUTTONHOLE SEWING MACHINE.

(Application filed Feb. 5, .1902.)

5 Sheets-Sheet 3.

I (ah Model.)

m: uomus PETER$ coq vuoromno wwmofon. q,c,

0 m 5 2 V 0 N G B n B a BUTTONHOLE SEWING MACHINE.

(Application filed Feb. 5, 1902.)

5 Shear-Sheet 4.

(N0 Model.)

" Nu. 71 L284. Patented Nov. 25, I902.

c. A. BAH-L & ms. HILL. BU'TTONHOLE SEWING MACHINE. (Application filed.Fob. 5, 1902.V) I 0' Model.) 5 SheatS-Sheat 5.

In: Norms PEYERS co; mm'ournm WASHINGTON, a. c'

l i I UNITED STATES:

ATENT twice.

CHARLES A. DAHL,OF LYNN, AND GEORGE S. HILL, OE HAVERHILL,MASSACHUSETTS, ASSIGNORS TO THE REEOE BUTTONHOLE MACHINE COMPANY, OFPORTLAND, MAINE, AND BOSTON, MASSACHUSETTS.

BUTTONHOLE-SEWING MACHINE.

SPECIFICATION formingpart of Letters Patent N 0. 714,284, dated November25, 1902.

Application filed February 5, 1902. Serial No. 92,606 (No model.)

sachusetts, citizens of the United States, have invented an Improvementin Sewing Machines, of which the following description, in

l a connection with the accompanying drawings,

is a specification, like characters on the drawings representing likeparts.

This invention relates to sewing-machines more especially devised foroverstitching the edges of buttonholesand other openings in material.

In the machine to be herein described the stitch is represented asformed of one thread carried byaneye-pointed penetrating needie, theloop of needle-thread below the material, both at its thrust for theedge and for a i go the depth stitch, being engaged by a complementaldevice located below the cloth-clamp,

said device acting at one descent to engage a loop of needle-thread andspread and hold said loop, while the device engaging a loop of thread ata subsequent descent of the needle passes theloo'p last engaged by itthrough the loop of thread left thereon at a previous descent of theneedle. The work-clamp and the means for supporting and actuating thesame are novel, and the clamp has a move ment both in the direction ofthe length of the buttonhole and also laterally with relongitudinalmovement of lation to the length of the buttonhole. The stitching iscommenced at or near one end of the buttonhole, is carried along oneside of the buttonhole, and then the clamp is shifted to place it inposition to receive barringstitches, and thereafter the movement of thework-clampin the direction of the length of the buttonhole is reversed,while stitches for the second side of the buttonhole are made, andarriving at the end of the buttonhole the the clamp is stopped and otherbarring-stitches are made to complete the buttonhole. and the clamp is athen moved laterally to place it into its norinal or starting position.The work-clamp,

suspended at its upper end from a pivot substantially over or in theline of movement of theneedle-bar, has a substantially universal clampand its periods of rest while barring.

is being done and while the relative positions of the clamp are changedto enable first one and then the other edge of a buttonhole to bestitched. The means herein illustrated comprises a screw that is rotatedin one direction while the stitching is being done for one edge of thebuttonhole, said screw having its direction of rotation reversed to movethe clamp longitudinally in the opposite direction while the second sideof the buttonhole is being stitched. The screw is left at rest aftereach side of the buttonhole has been stitched while the barring is beingdone for each end of the buttonhole.

To control the direction of movement as well as the periods of rest ofthe screw, we have provided a double or right and left hand worm thatisfixed upon a shaft that is rotated continuously in one direction, andsaid worm is made effectual to change the position of the clutch foractuating the screw that the screw may be rotated in one or the otherdirection or be left at rest as the exigencies of the stitching require.

The machine to be described is provided with cuttingmechanism that, asherein provided, acts to cut the buttonhole after the same has beenstitched; but this invention is not limited to cutting the buttonholeafter the completion of the stitching, as, if desired, the cutting mightbe done prior to the stitch-' ing.

Figure lot the drawings is a view of our machine looking at the samefrom the lefthand end thereof, the bed and its support be ing in sectionto better show the parts that would otherwise be concealed. Fig. 1 is adetail detached and on a smaller scale of the work-clamp carrier E Fig.2 is a right-hand end View of the machine shown in Fig. 1, part of thebed and its support being represented as transparent to show some of theparts that would otherwise be covered. Fig. 3 represents a front sideview of the machine, the bed and its support being broken out todisclose the parts below it, the dotted lines showing parts inclosedwithin the usual overhanging arm. Fig. a is a view looking down uponFig. 3 below the dotted line 00, said line passing just below the undersurface of the bed. Fig. 4 shows the bnttonhole stitched. Fig. 5 is adetail chiefly to show part of the stopping mechanism and the lever forputting it into its inoperative position. Fig. 6 is an enlarged planview showing part of the bed of the machine, the throat-plate, part ofthe work-clamp, and the right-and-left worm, and some of the devicesactuated by it on a larger scale. Fig. 7 is a sectional detail in aboutthe line 00 Fig. 6. Fig. 8 is a detail in side elevation showing thelooper and looper-actuating mechanism. Fig. 9 is a plan view thereof.Fig. 10 is a plan view of the part f detached, together with part of thelever 71. Fig. 10 shows two different views of the part f of the lever bdetached, together with the actuator and part of the end of the latch hFig. 11 shows two views of the actuator 31. Fig. 12, in perspective,shows the two members of the clutch, the gripper-shifter, and means tomove it. Fig. 13 represents the inner side View of the member ct; Figs.14: and

14, details in side elevation and section of the cam m and the fastpulley. Figs. 15 to 19 are details of the needle and looper and threadto illustrate the making of a stitch; Fig. 20, three detail views of thelooper and its shaft. Fig. 21 shows the saddle detached.

In the drawings, A represents a suitable support to stand on a table,said support, as herein represented, having hinged to it at A the bed Aof the machine, said bed having rising from it the usual overhanging armA The main shaft A of the machine has fast upon it a belt-pulley A thatreceives asuitable belt, (not shown,), said belt being actu ated fromany usual counter-shaft to drive the shaft A. The belt is embraced bythe fork of a belt-shipper A forming part of so called stopping meansthat may be moved, as will be described, at proper times to place thebelt on a loose pulley A mounted on said shaft, as when thestitch-forming mechanism is to remain at rest. Instead of the particularfast and loose pulleys we may substitute any usual form of cl[itch-pulley controlled in any usual way.

The shaft A sustained in suitable bearings A A, has a crank A", that isembraced by the end of a link A The upper end of the link A is connectedto one arm B of a bell-crank lever free to turn about a suitable stud Bparallel with shaft A The upper end B of the bell-crank is jointed by alink B to an arm B connected with a rock-shaft B extended along thegooseneck to the front of the machine, where said shaft has connectedwith it an arm B, herein represented as having jointed to its end a linkB that is in turn jointed to a stud projecting backwardly from a block Bsuitably connected, as by a screw 13", with the upper end of aneedle-bar B.

The needle-bar is surrounded by a sleevebushing O, that may be forcedinto a single hollow hub or hearing C at the end of agate C hereinrepresented as free to be rocked about a stationary stud 0 said gatehaving a backwardly-extended arm 0 provided with preferably a ball-liketermination 0 that is embraced by concaved portions of a link 0, hereinrepresented as extended through the overhanging arm. The link 0 at itsopposite end (see Fig. 1) embraces a stud-screw extended from a block 0that, as herein shown, is free to be adjusted vertically in a groove atone side of a downwardly-extended arm 0 of a rock-shaft having a hollowsleeve O loosely embracing the shaft B The link 0 has connected with it,as herein represented, by a screw 80 a regulator comprising a rod 0having applied to its screwthreaded end a turnbuckle D, which in turnsustains an enlarged part of the upper end of a rod D. The lower end Dof the rod of the regulator rests upon a lever D having as its fulcrum astud D (See Fig. 4.) The regulator has a spring D connected therewith,that acts normally to depress said regulator, so that a stop D thereonwill contact with the bed-plate except when acam f, to be described,actuates the lever D to lift the regulator. By turning the turnbuckle Dthe effective length of the regulator may be changed to change theposition of the block 0 in the arm 0 to provide for any desired lengthof depth stitch. The movements of said regulator in the direction of itslength by the lever D provides for such change automatic-- 1 ally in thelateral movement of the gate at the ends of the bnttonhole as to enablelong I barring-stitches to be made.

Referring again to the sleeve-bearing O,sus tained in the gate, itsurrounds the needlebar below the block to which the needle-baractuatingdevices are connected, and the needle-bar has no bearing above the blockreferred to, as in other sewing-machines here tofore made and known tous, and in this way it becomes possible to use a very short needle-bar,and this feature is claimed in connection with the vibrating gate. Theoverhanging arm, as herein represented, has an ear D that sustains ahorizontal stud D", on which is pivoted the hub of a link D carrying astud-screw D", that receives loosely the hub D of a work-clamp carrier Dhaving connected with its lower end, by screws 60, the under member E ofthe two-part workin Figz3as having at its lower end a shoulder clamp.The upper member E of the workclamp is carried at the end of a bar E,free to be moved in bearings D of the carrier D i The carrier is shapedto leave aspace E in which the work outside the upper member of theclamp may enter. The shank E of the l upper member is surrounded by aspring E that rests at its lower end upon the upper E of a lever pivotedon a stud E", a second arm E of said lever having jointed to it insuitable manner a depending leg E shown E that may be engaged and movedbya projection E to be described, carried by the cutting mechanism, asthe latter after cutting a buttonhole is being returned to its normalinoperative position to enable the work to be released, the end E ofsaid rocking lever at I, such time meeting the block E secured to L theshank E by a suitable screw. The block 5 E is shaped to act against theedge a, of the leverD and prevent any twisting or turning of the bar Ein the carrier, so that the upper a position above the bearing for theneedlebar substantially at right angles to the lonmember of the clamp'isalways kept in proper alinement with the lower member thereof.

It will be noticed that the stud D occupies gitudinal axis of theneedle-bar and also substantially parallel with the length of the but- Qtonhole. The stud-screw D occupies a position substantially at rightangles to the length hot the buttonhole and is free to turn about thestudD, and the longitudinal axis of said stud occupies a position tointersect aline coincident witht'ne longitudinal axis of the needle-bar.This stud and stud-screw-so sustain thework-clamp at its upper end andsus- M pend the work-clamp that it may be moved freelyboth in thedirection of the length of the buttonhole and. also in the direction ofthe width of the buttonhole, said pivots so sustaining the work-clampthat ithas a substantially universal movement. This feature N 1 ofsustaining 0r pivoting the work-clamp, as

stated,atits upper end is of great importance, as it reduces the clampto the fewest number of parts and enables it to be moved with the fminimum of friction when changing the position of the work as requiredwith relation .11 f

1, intend to claim, broadly, this method of susto the needle carried bythe needle-bar. We

taining the work-clamp.

The bed A of the machine is herein represented as cut away somewhat, asBJFF, to

ceive the lower end of the carrier DEand the lower side member E of thework-clamp has l depending from it a ball-stud F, that is embraced by atubular extension F (see Fig. 7)

of a screw-threaded sleeve Fiembracinga screw F forming part ofclamp-feeding 1 \IHBELDS, said screw being rotated, as will bedescribed, in one and then in the opposite direction to effect thelongitudinal movements of the cloth-clamp while stitching the side edgesof a buttonhole.

The lower member E of the cloth-clamp is (see Fig. 7) represented asslotted to embrace a throat-plate G, attached to the bed of thework-clamp embraces the throat-plate, and

the clampwhen moved longitudinally to insure the stitching of the sidesof a buttonhole is moved lengthwise of the throat-plate. The space atthe lower side of the lower member of the clamp is wide enough to enablesaid member to be moved laterally with relation to the length of thethroat-plate not only far enough to provide for stitching one and thenthe other side of a buttonhole, but also to provide for any desiredlength of barring-stitch.

The stitch-forming mechanism com plemental to the needle is showndetached in Figs. 8, 9, and 20 as a looper R at the end of a stubshaftR. The looper is shaped to present a convexed edge 7, having at itsopposite ends points 1" r. The body r of the looper between these pointsis thickened to enable the looper as one or the other point r or renters a loop of needle-thread to spread the same and hold it spread, sothat as the opposite point of the looper enters the next loop ofneedle-thread the last loop to be taken may be made to enter theprevious loop of needle-thread. The looper has a slot 7 in which theneedle may descend. The stub-shaft enters a hole in a short shaft r andis connected adjustably with said shaft by a set-screw r The shaft T hasits bearing in a block 1', (see Fig. 9,) having a depending leg 1*, theblock 0" being connected with the under side. of the worksupport byscrews 7". The shaft r has fixed wit a pinion 1, that is engaged byteeth r of a segmental plate 1"", pivoted at r said plate deriving itsmovement from an eccentric 7: on shaft A and a strap 1 connected byastud-screw r with said plate.

The screw F is herein represented as sustained upon pointed screws a andthe screw is screwed into threads at the interior of the sleeve F Thescrew F is embraced by a member a, forming part of a clutch for rotatingthe screw, said member having projecting from it (see Fig. 1)a stud athat is embraced by a link a united at its other end to a screw aextended from a block a, made adjustable in a slot of a plate a",attached to the end of the main shaft. The block alis.

engaged by a screw a restrained from longitudinal motion by a plate a,attached to the. plate 0. the rotation of said screw providing forimparting a greater or less throw to the clutch member, andconsequentlya greater or less movement of the shaft and screw to spacethe stitches more or less closely at the edge.

Viewing Fig. 13, showing the member ct detached, it will be seen thatsaid member has three dissimilar surfaces 2 3 4, and at one side saidmember is grooved at 0 to receive a spring 0, one end of which abutsagainst one end of said groove and the other end against a pin 0 of agripper shifter or changer 0, represented as having a hole to embracethe sleeve 0 of said member a, said grippershifter having two shouldersand 8 at its lower end, in which normally stands the gripper-actuator,herein shown as a saddle I), having a cam 5 provided with three faces 56 7, said actuator being free to slide on two pins 17, extended from themember a. (See Fig. 12.) The saddle has a lip 12 that is embraced by agrooved block b having a stem 1), that pivots said block upon a lever bpivoted at b on a suitable stud carried by the framework. The lever bderives its movement from-a leverb to be described, through a link 19connecting said two levers. The shifter has connected with it, asrepresented, two springs c and 0 that project somewhat beyond the endthereof, and between these springs where they project beyond the shifterwe locate a gripper c. When the cam 5 of the actuator rests against theshoulder 8 of the shifter, the gripper occupies a position on the lowestface 2, and consequently as the member is vibrated the gripper engagesthe flange d, shown as a Wheel of a second member 01, fixed to the wormF said members a and d forming a clutch or actuator for the screwforming part of the clamp -feeding means,and turns said screw from leftto right. A brake-band a embraces the member d and prevents itoverrunning. When the central portion 6 of the cam Z7 meets said lug 8,then the gripper occupies a position on the central face 3 of the membera, and in the vibrations of said member a the gripper is disengaged fromthe second member of the clutch, and at such time the screw F stands atrest. When, however, the cam face 7 meets the projection 8 of theshifter, the gripper occupies a position on the face 4 of the member anearest its connection with the link a and at such time the gripperclutches the'fiange of the second member 01, when the member (1 moves inthe direction of them-- row thereon, Fig. 3, and consequently the secondmember and the screw F, with which it is connected, are rotated in anopposite direction. In this way, through the grippershifter having thethree faces and the cam 6 it becomes possible to automatically changethe position of the gripper with relation to the faces 2 3 4 to providefor rotating the screw either to the right or to the left or to stop therotation of the screw between its changes of motion, the stopping of therotation of the screw being for a period of time equal to at least onefull rotation of the main shaft. In this way we provide means forfeeding the work-clamp longitudinally for stitching one side of thebuttonhole and stopping the feeding of the clamp after stitching oneside of the buttonhole, while the clamp is shifted in order that thestitching may be carried to the other side of the buttonhole and barringmay be done, and then the rotation of the screw is reversed to feed theclamp in the opposite direction, that the opposite side of thebuttonhole may be stitched, and then the rotation of the screw is againstopped, that barring-stitches may be made, and the clamp shifted toagain place it in starting position.

The main shaft A has secured upon it a right and left worm e e, havinggrooves varying in pitch, one or the other of said grooves receiving apin 6 or '6 movable vertically in a lever b pivoted at e. The pins 6 ande are alike, and viewing Fig. 7 it will be seen that each pin has anannular groove 19 and a shoulder 19 and that the pin is sustained by aspring 20, the outer end of which is supported by a threaded hollowsleeve 21, screwed into the lever b to sustain said spring, itsustaining the pin, and causes it to project from the upper side of thelever 6 The lever 79 has pivoted on it at 22 two like looking devices 23and 24, shown as levers, each adapted at one end to enter the annulargroove of one of said pins and hold it retracted in the lever 12 againstthe pressure of spring 20. The inner ends of the levers 23 and 24 areacted upon by a spring 25, surrounding pins 26, one carried by each ofsaid levers, as shown best in Fig. 7. Whenever one of the adjustabletrippers g or g is depending (see Figs. 3 and 7) from an arm g carriedby the sleeve F movable to actuate the work-clamp, meets alocking device23 or 24, said device is moved to release one of the pins (2 or 6letting it be projected from the lever into the substantially annularpart 27 or 27 X of the grooves of one or the other of the worms e or e,an abrupt part 28 or 28 of the worm rotating with the shaft A acting toquickly move the lever b about its pivot e in a direction to cause itthrough the link 19 to move in one or the other direction the saddlehaving the cam 6 The end of the lever 12 has a spring-sustained shoe f,the face of which bears against a raceway f, having stops f f at itsends to limit the stroke of said lever, the friction of the shoe againstthe raceway preventing undue movement of said lever b. The side of thelever 6 next to the bed plate is suitably grooved to receive a cam-blockf (Shown in detail in Fig. 10.) The cam-block f has a high point 10, acam f leading to a depression 11, and a high point 12. Rising from theback of this cam is a ledge 12 the face of which nearest the free end ofthe lever Z) has a cam 13. The foot of the cam-block has an ear 15,bored to receive a stud-screw 16, (see Fig. 6,) upon which is mounted anactuator 16 (see Fig. 6 and dotted lines, Fig. 10) for releasing thestopping means to be too 1 55 rock-shaft H has pinned upon it an arm H 1direction to efiect the automatic feeding of a tongue that is extendedthrough the hole 14.

in said block, (see Fig. 10,) the free end of the tongue projectingtoward the free end of the lever b, a suitable spring, as 18, actingnormally to keepthe tongue against one side wall of the hole 14:. Thedouble worm is employed to move the lever 12 and its connected parts tocontrol the action of thework-clampfeeding means and cause the gripper a(see Fig. 12) to rotate the screw F in the proper the clamp in thedirection for stitching both while barring-stitches are being made. I 1

sides of the buttonhole in the proper order.

the needle to be increased automatically for H the production ofbarring-stitches and also in moving the actuator 16 for controlling themovement of the stopping mechanism of the machine after completing thestitching of a buttonhole.

The buttonhole-cutter G is connected in suitable manner with one end ofa lever H,

1 having its'hub mounted on a stud-screw H said lever having abackWardly-extended arm H thatreceives loosely a stud H, (see Fig. 4,)having at one end a sleeve H", that embraces loosely a horizontal stud Hextended from an arm h forming part of the stopping means to bedescribed, said stud standing in said.

sleeve and actuating the cutter positively in both directions as themachine is to bestopped after the completion of a buttonhole. The arm Hhas extended from it the projection E before described, that as thecutting mechanism comes into its inoperative posi tion after having. cuta buttonhole engages the shoulder E of the leg E acted upon by spring n,and lifts the upper member of the clamp to release thework. i

The bed has suitable bearings h, that reoeive a rock-shaft H ,having asuitable shoulder h, that may be engaged by a projection 72 of a lever hpivoted at h*, said lever having at its free end a cam it (shown best inFigs. 4, 6, and 10, said cam being adapted to be met just as the machineis to be stopped by the actuator 16 movable with the lever b". The

and between said arm and one of the lugs sustaining the rock-shaftsaidshaft is surrounded i by a strong spring 71, that actswhen the pro- 6ojection k is removed from engagement with the shoulder h to move therock-shaft longitudinally of its hearings or to the right, viewing Fig.l, to effect the stopping of the main shaft. A suitable spring, as h,connected other equivalent clutch mechanism on the shaft A in positionto rotate said shaft. The arm 72, pinned to the outer end of therockshaft H, has secured'to it the belt-shifter A.

The arm h is acted upon by a pressure device m shown as a rod free toslide in a suitable bearing m fixed to the overhanging arm, the upperend of said rod entering loosely an ad- 3' ustable hollow nut miscrewedinto said hearing, the end of the nut acting on the upper end of aspring m, the lower end of said spring resting on awasher mhsuitablysecured to the rod. Pressure of the pressure device on the arm It may bevaried as desired by turning the nut m 1 During the operation ofstitching when the parts are in the position shown in Figs. 3 and 4 theleg E is held by the arm 11 out of the range of movement of theprojection E carried by the cutting mechanism. The arm 71 has suitabledepending lugs that receive a brake device 71, shown as a rod surroundedbetween said lugs with a spring h said rod having pinned upon it asuitable block m, that sustains one end of said spring, said rod at itsright-hand end (see Fig. 2) having a depending toe m, that is adapted tobe acted upon by the edge of a cam m the shape of which is shown fullyin dotted lines, Fig. 2, fast on the main shaft A, the greater diameterof the cam being utilized to turn the rockshaft H after the lever 71shall have been moved to release said shaft, as will be described, thatthe rock-shaft and its attached parts may be moved to the right, Fig.4:, under the action of the spring 71 such movement of the rock-shaftcausing the toe m to stop over the cam m and said cam raises the arm hcausing the stud H to rise and turn the lever H in a direction to causethe cutter to act and cut a buttonhole, the. spring m being compressedduring thedescent of the cutter H, so that said rod acts on the cam m asa brake to retard the movement of the shaft A The cutter-lever havingbeen fully actuated to cause the cutter H to cut the buttonhole-slit,the toe m in the rotation of the cam m enters the notch 40 of said camand instantly stops the machine,with the needlebar and needle out of thework. During the movement of. the rock-shaft H to the right, viewingFig. at, the projection H from said rock-shaft is put in such positionthat the spring it, normally acting to move the leg E to the right, Fig.3, puts the projection E of said leg in position to be engaged by theprojection E from the backwardly-extended arm of the cutter-lever as thesaid arm is moved downwardly as the toe m enters the notch 40, so thatit will be understood that as the cutting mechanism is moved into itsinoperative position through the action of the stopping mechanism thestud E raises m sustained in a suitable bearing depending from the bed,said fork having connected to it the link m joined to the arm n of thesleeve-hub in which the block C before described is made verticallymovable to vary the extent of the lateral movement of the needle gateand bar for making longer or barring stitches.

The bed-plate has a stud-screw 30 (shown in section in Fig. 4) thatserves as a pivot for an actuator 31, instrumental in moving theworkclamp laterally to insure the proper position of said clamp andmaterial that the stitching may follow along one or the other side ofthe buttonhole.

The actuator 31 has a concaved face that 'rests normally in contact witha block 71 mounted to swing about a stud-screw at, carried by asubstantially T-shaped slide 91 n, the part n contacting normally withone side of the clamp-carrier just below the top of the bed-plate. Theblock a is slotted to receive a set-screw to enable the block to beadjusted to provide for more or less lateral movement to the clamp for awider or narrower depth stitch. The actuator 81 has also depending fromits lower side a cam-lugn (see Fig. 11,) that is acted upon by thecam-face 13 of the ledge 12.

The lever D before described as sustaining the lower end of thecontroller 0 D, has projecting from one side of it a suitable roller orother stud 32, that at times is struck by the two high points 10 and 12of the block f before described, the high point 10 nearest the left-handend of the machine acting on said stud when the first side of thebuttonhole is being stitched, the other high point 12 sustaining saidstud when the second side of the buttonhole is being stitched, the studentering the space 11 between said high points during the barring whenlonger stitches are to be made.

In the operation of the machine let it be assumed that a buttonhole (seeFig. 4) is about to be stitched; that the sleeve F occupies the positionshown at the right, Fig. 4:; that the stitching is to be commenced at19, (see Fig. 4 that the upper member of the work-clamp is held up bythe engagement of the projection E of the cutting mechanism in itsinoperative position with the leg E that the rock-shaft H occupies itsfarthest position to the right, with the toe m of the rod 72 in thenotch 40 of the cam in that the belt is on the loose pulley A that thegripper 0 forming part of the actuating mechanism for turning the screwF to feed the clamp, is in contact with the lowest face 2 of the membera, and, finally, that the free end of the lever 19 occupies its farthestposition toward the right-hand end of the machine, Fig. 4E, and thatboth pins 6 and e are held by their looking devices 23 and 24:. Now theoperator engages the starting-lever 0', pivoted on a stud 0 sustained bya hanger 0 and turns said lever, causing it to act upon the arm H slidethe rock-shaft H to the left, viewing Fig. 4, into the full lineposition therein shown, thereby transferring the belt from the looseonto the fast pulley and enabling the spring h to turn the lever 71,that it may engage and retain the rock-shaft H in said position, the armI1 in this movement of the rock-shaft acting against the leg E releasingit from the projection E of the cutter-carrying lever, letting the upperclamping member descend upon the material held in the work-clamp. Thetransference of the driving-belt onto the fast pulley immediately startsthe shaft A and the stitch-forming mechanism and causes the gripper c inthe movement of the member a to engage the interior of the concavity ofthe second member (1 of the clutch used to start and rotate the screw Fin the direction to move the sleeve F and work-clamp longitudinally thatthe stitching may follow from the point p to 19'. As the stitchingarrives at the pointp the tripper g meets the locking device 23, carriedby the lever b releasing the pin e and permitting that pin to enter thesubstantially annular part 27 of the groove 6 of the worm, and said pinhaving gotten into the groove 27 the steep or abrupt part 28 of saidgroove acts quickly to move the lever b toward the left, Fig. 4, farenough to withdraw the cam b from the notch in the gripper-shifter 0such movement of the shifter placing the gripper on the middle face 3 ofthe member a and thereafter for at least one rotation of the shaft A andit may be for a longer period, according to the number ofbarring-stitches that it is desired to make, the longitudinal movementof the work-clamp is arrested by stopping the rotation of the screw FThe worm 6 moves the lever 19 continuously until the pin 6 runs out ofsaid groove 27, and during this time the portion 2 of the cam actsagainst the shoulder 8 of the gripper-shifter and maintains said gripperon the central portion 3 of the member a, and finally the pin 6 arrivesin a second abrupt part 28 of the Worm e and gives to the cam 6 afurther movement, causing the portion 7 thereof to act and turn thegripper-shifter far enough to place the gripper on the higher surface 4of the member a, and thereafter as the member a is reoiprocated therotation of the screw F is reversed or turned in the opposite direction,causing the work-clamp to be moved in the opposite direction under thestitch-forming mechanism to stitch the second side of the buttonholefrom the point p to p After the stopping of the longitudinal movement ofthe work-clamp by stopping the movement of the screw, one side of thebuttonhole having been stitched, the cam-face l3 acts on the lug n ofthe actuator 31, turns the same to act on the block n and move theslide-bar n a far enough to move the clamp laterally sufficiently toplace the opposite side of the buttonhole in the line of action of theneedle, and at the same time the high part 10 of the cam f retires fromthe roll 32, letting the roll i rock-shaft H and enable the hook E ofthe niof the slide-bar n m.

come overthe space 11, permitting the lever D to descend somewhat, sothat the controller (1 1) may be moved downwardly and vary the lateralthrow of the gateas desired, according to the length of thebar-stitches. the needle-bar making barring-stitches while the depressedportion 11 of said cam passes under the roll 32. A spring 9 connectedwith the framework and with the lower end of the work-clamp carrier (Zacts to keep said carrier in contact with the face Immediately as the adirection of movement of the screw is re- 27 of the groove of the worme.

versed to enable the stitch-forming mechanism to stitch the oppositeside of the but-tonhole the high part 12 of the cam f comes under theroll 32 and elevates the lever D and the rod 0 &c., to again make thelateral throw of the needle equal only to the length of thedepth-stitch. During the movement of the lever b from the position wherethe pin (3 was free to enter the groove of the worm 6 into the positionwhere said pin was again forced automaticallyback into position to beengaged by a locking device the pin 6 was retainedin its withdrawnposition and the change of position of the lever b placed the pin 6 inline with the annular portion Now as the clamp and sleeve are returnedtoward their starting positions-say into the position shown at the rightin Fig. 4the tripper g meets the locking device 24, releases the pin aand enables it to enter the annular part 27 of the groove of the worm e,where it is immediately acted upon by an abrupt part 28*, as described,of the worm e, that withdraws the. cam b from between the lugs of thegripper-shifter, placing the gripper opposite the central portion 3 ofthe member ct, thus stopping thefeed of the screw for the proper periodduring barring at 19 and finally said pin, entering the second abruptpart 28 of the worm e, is further moved to place the gripper on thelowest part 2 of the member a, the

positionthat it occupied when the stitching of the buttonholewascommenced, and as the lever 11 completes its movement to the rightthe actuator 16 meets the beveled end of thelatch k and turns the sameto release the 1 a H, causing the arm H to act upon the under side ofthe projection E of the cutter-carrying lever to depress the cutter tocut the buttonhole.

. We believe that we are the first to move automatically longitudinallyof the buttonhole a a work-clamp sustained above the bed-plate,

that the stitching may follow along the opposite sides of thebuttonhole, and also the first to move a work-clamp longitudinally bymeans of a screw actuated in such manner that the direction of movementof the work clamp maybe changed automatically to provide for moving thework-clamp longitudinally in opposite directions to enable both sides ofa buttonhole to be stitched.

we believe that we are the first to provide a clutch with a memberhaving a plurality of faces and a gripper-shifter that may be shifted orturned automatically at the desired times with relation to said memberto place said gripper in contact with one or another of said faces toeffect without alteration of the direc tion of movement of the member a.the rotation of a screw carrying the second member of the clutch in oneor the opposite direction or to leave said clutch member at rest, and wedesire to claim this feature broadly, irrespective of the particularmechanical construction of the parts. i

We also believe that we arethe first to employ a right and left handworm to actuate devices to control the lateral position of a work-clampwith relation to stitch-forming mechanism to provide for placing theworkclamp and the material therein in proper position under the controlof the stitch-forming mechanism that stitching may be done at one andthen at the opposite side of a buttonhole, said worm also controllingmeans whereby the lateral vibration of the needle may be changedautomatically to enable barringstitches to be made at the ends ofthebuttonhole.

In the production of the stitch it will be nu.

derstood that the needle descends at what is to be the outer end of thedepth-stitch and then at what is to be the edge of thebuttonhole withoutany intermediate feeding of the work between said two descents.

In the production of a stitch, referring to Figs. 15 to 19, let it beassumed that the needle has made a descent for the depth-stitch andstarted upward and that the point r of the looper is just entering theleft-hand side of the loop of thread. In the further movement of theparts the looper turns into its farthest position, (see Fig. 16,) andthe needle rises from the material, the looper holding the loop ofthread taken byits pointrspread about the looper, as represented. Theneedle again descends, this time, let it be supposed, at the edge of thebuttonhole,'and the point r of the looper in the reverse movementthereof engages the loop thrown out from the needle, this time, however,at the righthand side of said loop, (see Fig. 17,) and as the loopercontinues its movement to the left (see Fig. 18) the loop of threadtaken from the needle at the edge is passed through the loop of threadheld spread on the looper, andfinally the looper returns again into theposition shown in Fig. 19, where it holds the loop of thread taken fromthe needle at that descent thereof, forming the edge stitch, and fromthis position the movement of the looper is reversed, it coming into theposition Fig. 15,

and so on, repeating the operation for each stitch.

The needle-thread is subjected to the action of a suitable tensiondevice r herein represented as sustained by the gate 0, and theneedle-thread, supplied from any suitable source and placed under thecontrol of the tension device, is led therefrom to a suitable hole in anarm r connected with the upper end of the needle-bar, a slack-threadcontroller 7' acting upon the thread between said arm and the lower endof the needle-bar.

Having described our invention, what we claim as new, and desire tosecure by Letters Patent, is

1. A thread-carrying needle to penetrate the material alternatelyin theline of the edge of a buttonhole and in the line of the depthstitchtherefor, complemental means coacting with the needle, comprisingalooper having two points, one of which engages the loop of needle-threadat one descent and the other the loop of needle-thread at the nextdescent, the looper at each operation taking the loop of needle-threadheld by it through the previous loop of needle-thread.

2. A sewing-machine comprising a needlebar having an eye-pointed needle,and a don'- ble-pointed looper coacting with said needle in theformation of overedge-stitches, one point of said looper entering a loopof needlethread at one descent of the needle, the other point of saidlooper entering the loop of needle-thread at its next descent, thelooper at each operation carrying the loop of needlethread held by itthrough the previous loop of needle-thread, a shaft, and connectionsbetween said shaft and the needle-bar, and between said shaft andlooper, to impart two full strokes to the needle-bar to one completestroke of the looper.

3. Asewing-machine comprising a main rotatable under shaft having acrank, a parallel rock-shaft above the Work-support, connections betweensaid rock-shaft and needle-bar, and a bell-crank lever and two linksinterposed between said rock-shaft and rotatable shaft to cause twodescents of the needle-bar to one rotation of said rotatable shaft.

4. A needle-bar having a needle, means to actuate the needle-bar, alooper comprising a loop-spreading body provided with a slot in whichthe needle may descend, and two outwardly-turned points, means toactuate the looper that its points may engage alternately loops ofthread thrown out from the needle at successive descents, the body ofthe looper spreading each loop alternately for the passage through it ofa succeeding loop.

5. A needle-bar having an eye-pointed needle, means to actuate saidneedle-bar, and a looper having a slot and two points, said pointsacting alternately in alternate loops of needle-thread, and passing theloop of needlethread taken from the needle at one descent thereofthrough the previous loop of needlethread yet held by the looper.

6. A needle-bar having an eye-pointed needle, means to actuate saidneedle-bar, a looper having two points oppositely turned, one pointentering the loop of needle-thread formed at one descent of the needle,the other point entering a loop of needle-thread at a subsequent descentof the needle, said looper being constructed to spread the loop ofneedlethread held by it, and insure the reception through it of the loopof needle-thread taken at a subsequent descent of the needle.

7. A needle-bar having an eye-pointed needle, and means to reciprocatesaid needle-bar, combined with a looper comprising two oppositely-turnedpoints, the body of the looper being constructed to spread each loop andhold it spread that the opposite point of the looper may engage a loopof needle-thread and pass said loop through the spread loop heldthereon.

8. In abuttonhole-stitchingmachine,stitchforming mechanism comprising aneedle-bar having an eye-pointed needle and suitable complementaldevices to engage the loop of needle-thread to make stitches, awork-clamp comprising two clamping members, means to move said membersin the direction of the length of a buttonhole, means to move saidmembers at right angles to the length of the buttonhole about ahorizontal axis located above the upper end of the needle-bar to enablethe stitching to be carried from one to the opposite side of abuttonhole.

9. In a buttonhole-stitching machine, a work-clamp, stitch-formingmechanism comprising a needle-bar having an eye-pointed needle and asuitable complemental device, a horizontal stud located above thebearing for the needle-bar and sustaining said workclamp, an actuatorlocated below the clothclamp, means to move the actuator, and meansbetween the actuator and clamp to turn the latter about said stud toenable the stitching to be carried from one to the other side of thebuttonhole.

10. In a buttonhole-stitching machine, a horizontal stud substantiallyparallel with the length of the buttonhole, a stud-screw sustained bysaid stud and occupyinga position at right angles to said stud,stitch-forming mechanism comprising a needle-bar having an eye-pointedneedle and a suitable complemental device, a work-clamp suspendedthrough said studs, and means to move said clamp in the direction of thelength of the buttonhole and at right angles thereto.

11. In a buttonhole stitching machine, stitch-forming mechanismcomprising a needle-bar having an eye-pointed needle, and a complementaldevice coacting with said needle, a work-clamp having an upper and anunder member to grasp the material between them and pivoted above theupper bearing for said needle-bar, and means to move the clamp and thematerial held by it in the direction of the length of the buttonhole.

12. A throat-plate, a needle-bar having a IIO clamp comprising twomembers, means to suspend said clamp above the throat-plate,means tomove said work-clamp about its point of suspension in the direction ofthe length of the buttonhole during the stitching of the sides thereof,and an actuator, means to move, it, and means intermediate said actuatorand work-clamp to move the latter at right angles to the length of thebuttonhole to enable the stitching to be carried on at one and then atthe other side of the buttonhole.

13. In a sewing-machine, stitch forming mechanism comprisinga needle-barand complemental device to make overedge-stitches, a

throat-plate, a work-clamp pivoted above said throat-plate, and means toengage the lower endofthe work-clamp below said throat-plate and move itin the direction of the length of the buttonhole.

14:. In a sewing-machine, a work-support,

stitch-forming mechanism comprising a we,

dle-bar and complemental deviceto make overedge-stitches,athroat-plate,awork clamp pivoted above said throat-plate, means located below thethroat-plate and connected withsaid work-clamp to move said clamplongitudinally of the buttonhole and at right angles to the lengthofsaid buttonhole to insure the formation of stitches for both sides a ofa buttonhole.

15. Ina sewing-machine, a work-clamp, a screw to move said clamplongitudinally in the direction of the length of a buttonhole whilestitching one side thereof, means to stop the longitudinalmovement ofsaid clamp when the buttonhole has been stitched for the length desired,means to move automatically said clamp laterally to enable the stitchingto be made for the opposite side of the buttonhole, and means tothereafter reverse automatically the movement of said clamp through thescrew to provide for the stitch ing of the second half of thebuttonhole.

16. In a sewing-machine, a work-clamp, a screw to move said clamplongitudinally in the direction of the length of a buttonhole a clampoppositely for the completion of the second half of the buttonhole.

17. In a sewing-machine, stitch-forming mechanism including a needle barand a complemental device for making overedgestitches, a throat-plate, awork-clamp, means to pivotally sustain the work-clamp above thethroat-plate, means to move theworkclamp about its point of suspensionin the direction of the length of the buttonhole, and to move thework-clamp laterally with relation to the throat plate after stitchingone side of the buttonhole to provide for stitching the opposite sidethereof, and means to change the relative positions of the workclamp andstitch-forming mechanism to effect the production of barring-stitches.

18. In a sewing machine, a stationary throat-plate concaved at its upperside, combined with a suspended two-part work-clamp to hold the work,the under member of said clamp having its upper side concaved, the underside of the upper member of said clamp being convexed. i

19. In a sewing-machine, a throat-plate, a work-clamp composed of twomembers,means to pivotally sustain said work-clamp above thethroat-plate, means to move the workclamp about its pivotal point, aspring movable with said work-clamp and acting normally to force theupper member of the clamp toward the under member thereof, and meanstolift the upper member of the clamp automatically after the completionof a buttonhole.

20. In a sewing machine, stitch forming means to form a series ofoveredge-stitches,

a work-clamp, means to move the same to feed the material held thereby,a worm, a controller, and means actuated by said wor'm to actuate saidcontroller to effect a change in the lateral movement of the needle-barand needle of the stitch-forming mechanism at right angles to the lengthof the buttonhole toeffect theproduction of barring-stitches at the endof a buttonhole.

21. In a sewingmachine, stitchforming means to form a series ofoveredge-stitches, a work-clamp, means to move the same to feed thematerial held thereby, a right and left hand worm,acontroller, and meansactuated by said worm to actuate said controller to cfiect a change inthe lateral movement of the needle-bar and needle of the stitch-form-'ing mechanism at right angles to the length of the buttonhole to effectthe production of barring-stitches at the end of a buttonhole.

22. In a sewing -machine, stitch forming means to formoveredge-stitches, a workclamp, a screw to move the work-clamp in onedirection while stitching one side of the buttonhole,and in the oppositedirection while stitching the opposite side of the buttonhole, aright-and-left worm, and means actuated by it after the completion ofthe stitching at each side of the buttonhole to move the worka each sideof the buttonhole to stop the rotation of the screw, and means to movethe needle of the stitch-forming mechanism laterally for the productionof overedge-stitches, and for imparting to said needle-bar and needle alonger lateral movement for barring the ends of the buttonhole.

24. A work-clamp, a screw in operative engagement therewith, a clutchcomposed of two members one fixed to the screw and the other loose onthe screw, the loose member having a plurality of clutching-faces, agripper interposed between said members, a gripper-shifter, and means tomove the same independently of said members to change the position ofthe gripper and effect the rotation of the screw in one and then in anopposite direction.

25. In a sewing-machine, stitch-forming mechanism to formoveredge-stitches, a workclamp, a screw to move it longitudinally, aclutch member fixed to said screw, a movable clutch member having thescrew as its axis of motion, a gripper intermediate said clutch members,means to change automatically the position of said gripper between saidclutch members that the movable clutch member may act to rotate thescrew in one direction while stitching one side of a buttonhole and inthe opposite direction while stitching the opposite side of thebuttonhole.

26. In a sewing-machine, a cloth-clamp, a screw, a two-part clutch, anintermediate gripper, and means to change automatically the position ofsaid gripper between said clutch members that the screw may be moved inone or the other direction to move the clamp in the direction desired.

27. In a sewing-machine, a clamp, a screw, a clutch member fixedthereto, a gripper interposed between said members, means to changeautomatically the position of said gripper to temporarily stop themovement of the screw While said member continues in motion.

28. A work-clamp, stitch-forming mechanism to form overedge-stitches andbarringstitches, a screw, means to rotate said screw in one directionand then in an opposite direction to move the clamp longitudinally forthe overedge-stitching of one and then of the other side of thebuttonhole, and means to leave the screw at rest temporarily at theopposite ends of the buttonhole while barringstitches are being made atright angles to the length of the buttonhole.

29. Stitch-forming mechanism to form overedge-stitches, a work-clamp, ascrew to move the work-clamp, means to rotate said screw, and meansmoving with said clamp to stop the rotation of said screw at any desiredpoint according to the length of buttonhole desired.

30. Stitch-forming mechanism to form overedge-stitches, a work-clamp, ascrew to move the work-clamp, means to rotate said screw, means movingwith said clamp to stop the rotation of said screw at any desired pointaccording to the length of buttonhole desired, means to cause thestitch-forming mechanism to make a series of longer or barring stitchesat the end of a buttonhole, and means to then change the direction ofmovement of the work-clamp to enable the stitch-forming mechanism tostitch the opposite side of the buttonhole.

31. Stitch-forming mechanism to form overedge-stitches, a work-clamp, ascrew to move the work-clamp, means to rotate said screw, means movingwith said clamp to stop the rotation of said screw at any desired pointac cording to the length of buttonhole desired, means to cause thestitch-forming mechanism to make a series of longer or barring stitchesat the end of a buttonhole, means to then change the direction ofmovement of the workclamp to "enable the stitch-forming mechanism tostitch the opposite side of the buttonhole, and means to stop therotation of the screw when the second side of the buttonhole has beenstitched.

32. Stitch-forming mechanism to make over edge-stitches for abuttonhole, and to make longer stitches to bar both ends thereof, asuspended two-part work-clamp embracing the material, means to move thework-clamp to feed the material, stopping mechanism, look ing mechanismto lock the stopping mechan ism in its inoperative position during thestitching of a buttonhole, and a device to release said lockingmechanism, that said stopping mechanism may act to stop thestitchforming mechanism as the final end of the buttonhole is barred.

33. In a sewing-machine, stitch-forming mechanism to makeoveredge-stitches and longer barring-stitches at both ends of thebuttonhole, a pivotally-sustained work-clamp to embrace the material,means connected with the lower end of the work-clamp to move the clamplongitudinally, and means to also move said work-clamp laterally afterthe comple tion of the stitching of one side of a buttonhole to placethe clamp in proper stitching relation to the stitch-forming mechanismthat the opposite side of the buttonhole may be stitched.

34. In a buttonhole-sewing machine,a work clamp pivoted at its upperend, a sleeve jointed to the lower end of the clamp, and means to movesaid sleeve longitudinally for the length of a buttonhole, and to thenmove the sleeve and clamp in the opposite direction to itsstarting-point.

35. In a buttonhole-sewing machine, a suspended work-clamp, a sleevejointed to the lower end of said clamp, means to move said sleeve, adouble worm, a lever moved in one direction by one of said worms and inthe opposite direction by the other of said worms, and means actuated bysaid lever to cause the sleeve-moving means to move the sleeveautomatically in one and then in the opposite direction.

36. In a sewing-machine, stitch-forming ,clamp composed of an upper andlower member, a spring acting normally to close the clamp, clamp-openingmeans, buttonhole-cutting mechanism, stopping means to stop thestitch-forming mechanism at the completion of a buttonhole, and toactuate the cutting mechanism to cut the buttonhole, said cuttingmechanism as it is returned into its inoperative position after cuttinga buttonhole engaging the clamp-openin g means and opening the clampretaining the same opened while the machine is stopped, a startingdevice to release thestopping device, means to actuate the stoppingdevice to move the same into its inoperative position to startstitchforming mechanism, the stopping means in its movement to enablethe stitch-forming mechanism to be startedreleasing the clampopenin-gmeans to enable said clamp to be closed and grasp the material.

38. In a sewing-machine, overedge-stitchforming mechanism, a work-clamp,cutting mechanism,stopping means, means to actuate the stopping means atthecompletion of a buttonhole to actuate the cutting mechanism to cutthe material in the work-clamp, and

means actuated by the cutting mechanism as the latter comes into itsinoperative position to open the Work-clam p for the removal of the forthe release of the material.

40. In a sewing-machine, stitch-forming mechanism for formingoveredge-stitches, a work'clamp, means to move said clamp laterally toput it in position to stitch one and then the opposite side edge of thebuttonhole,

a rotating shaft provided with a worm, means actuated by said worm toreverse the movement of the work-clamp after stitching one side of thebuttonhole, stopping means, means acting normally to retain saidstopping means in positionto enable the shaft to be rotated, and adevice actuated by said worm and provided with means for effecting therelease of the stopping means at the completion of a buttonhole.

41. In a sewing-machine, a needle-bar provided with an eye-pointedneedle, a complemental device coacting with said needle to formstitches,a needle-bar-actuating rockshaft, a gate in which the needle-bar ismoved vertically through the movement of said rockshaft, a rock-shaftembracing loosely said needle-bar-actuating rock-shaft, a'leverconnecting a depending arm of said loosely-sustained rock-shaft and anarm of said gate, a controller connected directly with said lever, andmeans to move said controller automatically to control the extent oflateral throw of the gate and needle-bar while overstitching the sideedges of a buttonhole, and for barring the ends of the buttonhole withlonger stitches.

42. In a sewing-machine, a shaft having a right-and-left worm, a levermoved in one and then in the opposite direction respectively by saidworm, a screw, means to rotate said screw, and means controlled by saidlever as it is moved by the worm to stop the rotation of the screw atthe ends of the buttonhole, and to rotate said screw in one directionwhile stitching oneside of a buttonhole, and in an opposite directionwhile stitching the opposite side of a buttonhole.

43. In a sewing-machine, a work-clamp, a sleeve loosely connected withsaid clamp and provided with trippers, a screw for moving said sleeve,clutch mechanism to actuate said screw, a shaft having a right-and-let'tworm, a lever having spring-controlled pins, looking devices for each ofsaid pins, said tripping devices meeting said locking devices one afterthe other to release its pin to engage one or the other of the groovesof one or the other worm to move the lever, and devices controlled bythe movement of said lever to change the condition of the clutchmechanism to rotate the screw in one and then in the opposite directionand leave the screw at rest between its periods of rotation.

44. In a sewing-machine, stitch-forming means to form overedge-stitches,a workclamp suspended at its upper end above the throat-plate of themachine, a device connected with the depending lower end of thework-clamp, means to move said device to cause the longitudinal movementof the workclamp in one and then in the opposite direction to providefor stitching both sides of a buttonhole, and means to move the lowerend of said work-clamp laterally after completing the stitching of thefirst half of the buttonhole to place the material held bythe clamp inproper relation to the stitch-forming mechanism that the second side ofthe buttonhole may be overstitched.

45. In a sewing-machine, stitch-forming mechanism to make parallel rowsof overedgestitches for both sidesof a buttonhole, and longerbarring-stitches at both ends of said parallel rows of stitches, atwo-part clamp suspended above the bearings for the needlebar of thesewing-machine, and means to move said Work-clamp longitudinally andlaterally for the purposes stated.

46. In a sewing-machine, stitch-forming mechanism to make parallel rowsof overedgestitches for both sides of a bnttonhole, and longerbarring-stitches at both ends of said parallel rows of stitches, atwo-part clamp suspended above the bearings for the needlebar of thesewing-machine, and means to move said Work-clamp longitudinally andlaterally for the purposes stated, bnttonholecutting mechanism, means toactuate it to cut a buttonhole, and means to automatically 15 open theWork-clamp after the cutting of the buttonhole.

In testimony whereof we have signed our. names to this specification inthe presence of two subscribing Witnesses.

CHARLES A. DAHL. GEORGE s. HILL.

Witnesses:

GEO. W. GREGORY, FRANCIS A. SHEA.

